mongodb creates 80+ files 2GB each while database is empty

Question

Background:

I set the replicaSet and initiated 3 instances (1 arbiterOnly) of mongod on localhost using different ports.

I haven noticed tha

Answer 1

There are various command line parameters I have found to reduce the size of the empty database.

Already mentioned:

--oplogSize 

Also:

--smallfiles
--nssize 

The combination of all 3 parameters makes for an 18mb empty database (tested against MongoDB 64bit, Windows 7).

http://docs.mongodb.org/manual/reference/program/mongod/